/*
 * Copyright (c) 2008-2009 Bill Whitacre http://rampancy.g0dsoft.com
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
*/

#ifndef RAT_PHYSICS_LINE
#define RAT_PHYSICS_LINE

#include "common.h"
#include "transform.h"
#include "vector.h"

typedef struct line2
{
	vector2 a;
	vector2 b;
} line2;

#ifdef __cplusplus
extern "C" {
#endif

void line2_init(line2 *line);
void line2_set(line2 *line,vector2 a,vector2 b);
rat_real line2_length(line2 line);

vector2 line2_getnormal(line2 line,int reverse);
vector2 line2_vector2project(line2 line,vector2 vector);

int line2_intersection(line2 line_a,line2 line_b,vector2 *intersection);

line2 line2_getrotated(line2 line,rat_real angle);
line2 line2_getscaled(line2 line,vector2 scalar);
line2 line2_gettranslated(line2 line,vector2 trans);

void line2_rotate(line2 *self,rat_real angle);
void line2_scale(line2 *self,vector2 scalar);
void line2_translate(line2 *self,vector2 trans);

#ifdef __cplusplus
};
#endif

#endif
